In administering a calcium channel blocker to a patient diagnosed with primary hypertension, the nurse understands this is due to which mechanism of action of this medication?

A. While pulse oximetry is important for assessing oxygen saturation and determining if supplemental oxygen is needed, it does not provide specific information about the type of pneumonia or the causative organism. It’s more of a monitoring tool than a diagnostic test to guide treatment planning.
B. Bronchoscopy can be useful for visualizing the airways and obtaining samples if the pneumonia is severe or complicated (e.g., suspected abscess or obstruction). However, it is not routinely performed for all pneumonia cases and is not the first-line diagnostic test for planning care.
C. Pulmonary function tests assess lung capacity and airflow but are not directly useful for diagnosing pneumonia or guiding immediate treatment plans. They are more relevant for chronic respiratory conditions such as asthma or COPD.
D. Sputum culture and sensitivity tests are critical in pneumonia cases as they help identify the specific organism causing the infection and determine the most effective antibiotic treatment. This information is essential for guiding the healthcare provider in planning appropriate and targeted therapy, especially in cases of community-acquired versus hospital-acquired pneumonia.

A. While yogurt is a nutritious food, it is not a significant source of iron.
B. Oranges are rich in vitamin C, which can help the body absorb iron from other foods. However, they are not a significant source of iron themselves.
C. Red meat, such as beef, lamb, and pork, is an excellent source of heme iron, which is easily absorbed by the body. This makes red meat a highly recommended food for people with iron deficiency.
D. Cashews are a good source of plant-based iron, but they also contain phytates, which can interfere with iron absorption. Therefore, while cashews can contribute to iron intake, they may not be as effective as red meat in addressing iron deficiency.